Pub Date : 2006-12-01DOI: 10.1109/ISPACS.2006.364842
T. Akimoto, N. Hagita
We are developing a type of robotics technology called a "network robot system." Such a system can provide robot-based services that are not realized by a single robot but a combination of robots, ubiquitous sensors, PCs, and cellular phones. Using various types of robot technology in a network helps to improve people's understanding of their situation and environment. In this paper, we introduce a network robot system and discuss some examples of the system in which robots directly interact with their users
{"title":"Introduction to a Network Robot System","authors":"T. Akimoto, N. Hagita","doi":"10.1109/ISPACS.2006.364842","DOIUrl":"https://doi.org/10.1109/ISPACS.2006.364842","url":null,"abstract":"We are developing a type of robotics technology called a \"network robot system.\" Such a system can provide robot-based services that are not realized by a single robot but a combination of robots, ubiquitous sensors, PCs, and cellular phones. Using various types of robot technology in a network helps to improve people's understanding of their situation and environment. In this paper, we introduce a network robot system and discuss some examples of the system in which robots directly interact with their users","PeriodicalId":178644,"journal":{"name":"2006 International Symposium on Intelligent Signal Processing and Communications","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115034975","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2006-12-01DOI: 10.1109/ISPACS.2006.364887
Pan Xiuqin, Li Xiali, Lu Yong, Cao Yongcun, Zhao Yue
In this paper, an object recognition algorithm of ship noise is presented combined a new kind of information processing technology with pattern matching. The procedure of processing acoustic signal of human being's hearing is imitated to extract the auditory correlation spectrum (ARS) as feature in the algorithm. Then, a novel feature named as summation of auditory correlation spectrum (SARS) is defined. Consequently the simulation on the presented algorithm and that based on power spectrum and based on neural network is carried out. The results illustrate that the given algorithm is effective and efficient
{"title":"Research on the Algorithm of Object Recognition of Ship noise Based on Auditory Feature and Pattern-matching","authors":"Pan Xiuqin, Li Xiali, Lu Yong, Cao Yongcun, Zhao Yue","doi":"10.1109/ISPACS.2006.364887","DOIUrl":"https://doi.org/10.1109/ISPACS.2006.364887","url":null,"abstract":"In this paper, an object recognition algorithm of ship noise is presented combined a new kind of information processing technology with pattern matching. The procedure of processing acoustic signal of human being's hearing is imitated to extract the auditory correlation spectrum (ARS) as feature in the algorithm. Then, a novel feature named as summation of auditory correlation spectrum (SARS) is defined. Consequently the simulation on the presented algorithm and that based on power spectrum and based on neural network is carried out. The results illustrate that the given algorithm is effective and efficient","PeriodicalId":178644,"journal":{"name":"2006 International Symposium on Intelligent Signal Processing and Communications","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123699819","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2006-12-01DOI: 10.1109/ISPACS.2006.364698
Hiroki Matsumoto, T. Kashihara, Toshihiro Furukawat
In a teleconference system, a cause of deterioration for sound quality is echo signals. A convectional echo canceller had to stop updating parameters during the double talk. So, the reliability of transmitted signals deteriorate during the double talk. Therefore, blind signal separation (BSS) method is the method that is suitable for echo cancellers, because the method doesn't need to stop updating parameters during double talk. However, it is difficult to directly apply, because BSS method has two faults. So we solve these faults by using system structure of the echo canceller. As the result, we can apply BSS method to echo canceller. And, it has a higher reliability of transmitted signals
{"title":"A Proposal of Echo Canceller using Blind Signal Separation method","authors":"Hiroki Matsumoto, T. Kashihara, Toshihiro Furukawat","doi":"10.1109/ISPACS.2006.364698","DOIUrl":"https://doi.org/10.1109/ISPACS.2006.364698","url":null,"abstract":"In a teleconference system, a cause of deterioration for sound quality is echo signals. A convectional echo canceller had to stop updating parameters during the double talk. So, the reliability of transmitted signals deteriorate during the double talk. Therefore, blind signal separation (BSS) method is the method that is suitable for echo cancellers, because the method doesn't need to stop updating parameters during double talk. However, it is difficult to directly apply, because BSS method has two faults. So we solve these faults by using system structure of the echo canceller. As the result, we can apply BSS method to echo canceller. And, it has a higher reliability of transmitted signals","PeriodicalId":178644,"journal":{"name":"2006 International Symposium on Intelligent Signal Processing and Communications","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124201999","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2006-12-01DOI: 10.1142/S0219467808002952
Jianming Lu, Ling Wang, Yeqiu Li, T. Yahagi
When a signal is embedded in an additive Gaussian noise, its estimation is often done by finding a wavelet basis that concentrates the signal energy in few coefficients and then thresholding the noisy coefficients. However, in many practical problems such as medical X-ray image, astronomical and low-light images, the recorded data is not modeled by Gaussian noise but as the realization of a Poisson process. Multiwavelet is a new development to the body of wavelet theory. Multiwavelet simultaneously offers orthogonality, symmetry and short support which are not possible in scalar 2-channel wavelet systems. After reviewing this recently developed theory, a new theory and algorithm for denoising medical X-ray images using multiwavelet multiple resolution analysis (MRA) are presented and investigated in this paper. The proposed covariance shrink (CS) method is used to threshold wavelet coefficients. The form of thresholds is carefully formulated which is the key to more excellent results obtained in the extensive numerical simulations of medical image denoising compared to conventional methods
{"title":"Noise Removal for Medical X-ray images in Multiwavelet Domain","authors":"Jianming Lu, Ling Wang, Yeqiu Li, T. Yahagi","doi":"10.1142/S0219467808002952","DOIUrl":"https://doi.org/10.1142/S0219467808002952","url":null,"abstract":"When a signal is embedded in an additive Gaussian noise, its estimation is often done by finding a wavelet basis that concentrates the signal energy in few coefficients and then thresholding the noisy coefficients. However, in many practical problems such as medical X-ray image, astronomical and low-light images, the recorded data is not modeled by Gaussian noise but as the realization of a Poisson process. Multiwavelet is a new development to the body of wavelet theory. Multiwavelet simultaneously offers orthogonality, symmetry and short support which are not possible in scalar 2-channel wavelet systems. After reviewing this recently developed theory, a new theory and algorithm for denoising medical X-ray images using multiwavelet multiple resolution analysis (MRA) are presented and investigated in this paper. The proposed covariance shrink (CS) method is used to threshold wavelet coefficients. The form of thresholds is carefully formulated which is the key to more excellent results obtained in the extensive numerical simulations of medical image denoising compared to conventional methods","PeriodicalId":178644,"journal":{"name":"2006 International Symposium on Intelligent Signal Processing and Communications","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124074770","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2006-12-01DOI: 10.1109/ISPACS.2006.364771
K. Kuroiwa, M. Fujiyoshi, H. Kiya
This paper proposes a partial scrambling method for motion JPEG movies that inverts bits representing the positive and negative sign of particular AC coefficients in a codestream to scramble the codestream. Utilizing the relation between motion and the positive and negative sign of coefficients, moving object detection is not required in this method. Moreover, the proposed method completely descrambles codestreams to the original by simple inversion of bits without any knowledge on the position and shape of moving objects. The codestream domain processing in this method serves low processing time and invariant coding efficiency. Simulation results show the effectiveness of the proposed method
{"title":"Codestream Length-Invariant Partial Scrambler Using DCT Signs for Motion JPEG Movies","authors":"K. Kuroiwa, M. Fujiyoshi, H. Kiya","doi":"10.1109/ISPACS.2006.364771","DOIUrl":"https://doi.org/10.1109/ISPACS.2006.364771","url":null,"abstract":"This paper proposes a partial scrambling method for motion JPEG movies that inverts bits representing the positive and negative sign of particular AC coefficients in a codestream to scramble the codestream. Utilizing the relation between motion and the positive and negative sign of coefficients, moving object detection is not required in this method. Moreover, the proposed method completely descrambles codestreams to the original by simple inversion of bits without any knowledge on the position and shape of moving objects. The codestream domain processing in this method serves low processing time and invariant coding efficiency. Simulation results show the effectiveness of the proposed method","PeriodicalId":178644,"journal":{"name":"2006 International Symposium on Intelligent Signal Processing and Communications","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130761650","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2006-12-01DOI: 10.1109/ISPACS.2006.364726
Yi-Min Tsai, Yu-Lin Chang, Liang-Gee Chen
This paper presents a robust and reliable block-based method for vanishing line and vanishing point detection. The proposed method provides assistance in construction of a depth map, which is a necessity of 3D scenes. Moreover, the method focuses on the fundamental image structural element analysis, and divides them into six successive steps. Furthermore, complicated mathematic calculation and approximation are replaced by six block-based estimation algorithms. Also, the method is a regular algorithm design which is suitable for VLSI design on future 3D applications.
{"title":"Block-based Vanishing Line and Vanishing Point Detection for 3D Scene Reconstruction","authors":"Yi-Min Tsai, Yu-Lin Chang, Liang-Gee Chen","doi":"10.1109/ISPACS.2006.364726","DOIUrl":"https://doi.org/10.1109/ISPACS.2006.364726","url":null,"abstract":"This paper presents a robust and reliable block-based method for vanishing line and vanishing point detection. The proposed method provides assistance in construction of a depth map, which is a necessity of 3D scenes. Moreover, the method focuses on the fundamental image structural element analysis, and divides them into six successive steps. Furthermore, complicated mathematic calculation and approximation are replaced by six block-based estimation algorithms. Also, the method is a regular algorithm design which is suitable for VLSI design on future 3D applications.","PeriodicalId":178644,"journal":{"name":"2006 International Symposium on Intelligent Signal Processing and Communications","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131024625","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2006-12-01DOI: 10.1109/ISPACS.2006.364724
N. Oshima, T. Saitoh, R. Konishi
This paper describes an automatic detection and tracking method for unknown object from unclear background. Our method consists of two processes, the detection process and the tracking process. The former process is the background subtraction method and the block-based clustering. The latter process is with mean shift method. To detect an accurate size of the target region, we set a correction period. Demonstration was carried out with a scene which three men are appeared and walked. It is found that two regions could be tracked even when two men was walked toward different direction which they walking together. We confirmed that the proposed method could process on real time.
{"title":"Automatic Moving Object Detection and Tracking with Mean Shift for Surveillance System","authors":"N. Oshima, T. Saitoh, R. Konishi","doi":"10.1109/ISPACS.2006.364724","DOIUrl":"https://doi.org/10.1109/ISPACS.2006.364724","url":null,"abstract":"This paper describes an automatic detection and tracking method for unknown object from unclear background. Our method consists of two processes, the detection process and the tracking process. The former process is the background subtraction method and the block-based clustering. The latter process is with mean shift method. To detect an accurate size of the target region, we set a correction period. Demonstration was carried out with a scene which three men are appeared and walked. It is found that two regions could be tracked even when two men was walked toward different direction which they walking together. We confirmed that the proposed method could process on real time.","PeriodicalId":178644,"journal":{"name":"2006 International Symposium on Intelligent Signal Processing and Communications","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130323480","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2006-12-01DOI: 10.1109/ISPACS.2006.364876
R. Banchuin, R. Chaisricharoen, B. Chipipop, B. Sirinaovakul
Commonly known, the gyrator-based OTA simulated floating inductor can be divided into two categories; 3-OTA and 4-OTA structure which perform identically in the ideal phenomena where all OTA's nonidealities i.e. parasitic elements, effect of finite open-loop bandwidth and noise have been neglected. It has been found in R. Banchuin et al. (2005) that the 4-OTA-based floating inductor has better functional and noise performances than its 3-OTA counterpart in the practical phenomena where all of the cited nonidealities included. However, this conclusion has been made based upon the assumption that all OTAs are of the bipolar type. Therefore, due to the rise of the age of CMOS technology; an attempt to find the difference between the 3-CMOS-OTA and 4-CMOS-OTA based floating inductors has been made. Including all of the cited nonidealities, the 4-CMOS-OTA-based floating inductor also has both better functional and noise performances than its 3-CMOS-OTA counterpart. This conclusion strengthens the superiority of the 4-OTA structure over the 3-OTA counterpart since it has been found to be independent of the basis technology and also supports the design guideline proposed in R. Banchuin et al. (2005)
{"title":"In Depth Analysis of The CMOS OTA-Based Floating Inductors","authors":"R. Banchuin, R. Chaisricharoen, B. Chipipop, B. Sirinaovakul","doi":"10.1109/ISPACS.2006.364876","DOIUrl":"https://doi.org/10.1109/ISPACS.2006.364876","url":null,"abstract":"Commonly known, the gyrator-based OTA simulated floating inductor can be divided into two categories; 3-OTA and 4-OTA structure which perform identically in the ideal phenomena where all OTA's nonidealities i.e. parasitic elements, effect of finite open-loop bandwidth and noise have been neglected. It has been found in R. Banchuin et al. (2005) that the 4-OTA-based floating inductor has better functional and noise performances than its 3-OTA counterpart in the practical phenomena where all of the cited nonidealities included. However, this conclusion has been made based upon the assumption that all OTAs are of the bipolar type. Therefore, due to the rise of the age of CMOS technology; an attempt to find the difference between the 3-CMOS-OTA and 4-CMOS-OTA based floating inductors has been made. Including all of the cited nonidealities, the 4-CMOS-OTA-based floating inductor also has both better functional and noise performances than its 3-CMOS-OTA counterpart. This conclusion strengthens the superiority of the 4-OTA structure over the 3-OTA counterpart since it has been found to be independent of the basis technology and also supports the design guideline proposed in R. Banchuin et al. (2005)","PeriodicalId":178644,"journal":{"name":"2006 International Symposium on Intelligent Signal Processing and Communications","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130177853","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2006-12-01DOI: 10.1109/ISPACS.2006.364854
N. Eiamjumrus, S. Aramvith
Base on the observation that Cauchy distribution provides accurate estimates of rate and distortion characteristics of video sequences, in this paper, we propose a new rate control scheme based on Cauchy based rate-distortion optimization model for the application of H.264 bit allocation. One solution which has been proposed in this paper uses the Langrange multiplier technique as the cost function to find the rate and distortion model subject to the target bit rate constraint resulting in the optimum choice of quantization step sizes. Model parameters are estimated using statistical linear regression analysis. Accordingly we then propose a simple rate control scheme using this new Cauchy rate-distortion model. The target number of bit for each frame is determined according to their buffer status, combined with the number of bits use in the previous frame. The technique proposed has been implemented in H.264 video encoder. Experimental results showed that the proposed rate control algorithm achieves an improvement of average PSNR with smooth video quality compared with the H.264 JM8.6 rate control
{"title":"New rate control Scheme based on Cauchy Rate-Distortion Optimization Model for H.264 Video Coding","authors":"N. Eiamjumrus, S. Aramvith","doi":"10.1109/ISPACS.2006.364854","DOIUrl":"https://doi.org/10.1109/ISPACS.2006.364854","url":null,"abstract":"Base on the observation that Cauchy distribution provides accurate estimates of rate and distortion characteristics of video sequences, in this paper, we propose a new rate control scheme based on Cauchy based rate-distortion optimization model for the application of H.264 bit allocation. One solution which has been proposed in this paper uses the Langrange multiplier technique as the cost function to find the rate and distortion model subject to the target bit rate constraint resulting in the optimum choice of quantization step sizes. Model parameters are estimated using statistical linear regression analysis. Accordingly we then propose a simple rate control scheme using this new Cauchy rate-distortion model. The target number of bit for each frame is determined according to their buffer status, combined with the number of bits use in the previous frame. The technique proposed has been implemented in H.264 video encoder. Experimental results showed that the proposed rate control algorithm achieves an improvement of average PSNR with smooth video quality compared with the H.264 JM8.6 rate control","PeriodicalId":178644,"journal":{"name":"2006 International Symposium on Intelligent Signal Processing and Communications","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125517787","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Location estimation algorithm for a pedestrian is proposed for the real surveillance system based on color instances with color dynamic images under low illumination, where the proposed color instances consist of color-difference, moving possibility region, and previous detection objects in edge region using time series data. It provides useful detection result for too low illuminated situation. Experimental results for dynamic image taken under low illumination in streets show that detected frames with the proposed algorithm increase by 20% compared with detection result without color instances. The proposed algorithm is under consideration for use in a relatively poor security downtown area in Japan.
{"title":"Instance-based location estimation algorithm for a pedestrian in multiple color dynamic images","authors":"Yutaka Hatakeyama, Akimichi Mitsutat, Kaoru Hirota","doi":"10.1109/ISPACS.2006.364712","DOIUrl":"https://doi.org/10.1109/ISPACS.2006.364712","url":null,"abstract":"Location estimation algorithm for a pedestrian is proposed for the real surveillance system based on color instances with color dynamic images under low illumination, where the proposed color instances consist of color-difference, moving possibility region, and previous detection objects in edge region using time series data. It provides useful detection result for too low illuminated situation. Experimental results for dynamic image taken under low illumination in streets show that detected frames with the proposed algorithm increase by 20% compared with detection result without color instances. The proposed algorithm is under consideration for use in a relatively poor security downtown area in Japan.","PeriodicalId":178644,"journal":{"name":"2006 International Symposium on Intelligent Signal Processing and Communications","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128005058","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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